Put braces on new line in CSharp generator

[marcinjahn]

Fixes the C# code generation to follow the usual style of putting braces on new lines.
Fixes #4347

[baywet]

Thanks for the contribution. Have you thought of adding an optional parameter named something like "curly at next line" default false to the start block method instead?

[marcinjahn]

Thanks for the contribution. Have you thought of adding an optional parameter named something like "curly at next line" default false to the start block method instead?

Boolean parameters are always a bit questionable, maybe it could be a separate method. However, in general, I'd say the current approach is alright. In some cases we'd want to move braces to new lines, in some other cases we probably wouldn't want that (e.g. int Something { get; set; }).

Obviously, I'll abide by your decision. If you think I should change something, I can do that.